// Cross-Browser Rich Text Editor
// http://www.kevinroth.com/rte/demo.htm
// Written by Kevin Roth (kevin@NOSPAMkevinroth.com - remove NOSPAM)
// Visit the support forums at http://www.kevinroth.com/forums/index.php?c=2
// This code is public domain. Redistribution and use of this code, with or without modification, is permitted.

//init variables
var isRichText = false;
var rng;
var currentRTE;
var allRTEs = "";

var isIE;
var isGecko;
var isSafari;
var isKonqueror;

var imagesPath;
var includesPath;
var cssFile;
var generateXHTML;

var lang = "en";
var encoding = "iso-8859-1";


///////////////////////////////////
///////////
/////////  javascript: currentRTE='short_story'; insertHTML("<b>Done!</b>")
//////////
///////////////////////////////////



function initRTE(imgPath, incPath, css, genXHTML) {
        //set browser vars
        var ua = navigator.userAgent.toLowerCase();
        isIE = ((ua.indexOf("msie") != -1) && (ua.indexOf("opera") == -1) && (ua.indexOf("webtv") == -1));
        isGecko = (ua.indexOf("gecko") != -1);
        isSafari = (ua.indexOf("safari") != -1);
        isKonqueror = (ua.indexOf("konqueror") != -1);

        generateXHTML = genXHTML;

        //check to see if designMode mode is available
        //Safari/Konqueror think they are designMode capable even though they are not
        if (document.getElementById && document.designMode && !isSafari && !isKonqueror) {
                isRichText = true;
        }

        if (isIE) {
                document.onmouseover = raiseButton;
                document.onmouseout  = normalButton;
                document.onmousedown = lowerButton;
                document.onmouseup   = raiseButton;
        }

        //set paths vars
        imagesPath = imgPath;
        includesPath = incPath;
        cssFile = css;

        if (isRichText) document.writeln('<style type="text/css">@import "' + includesPath + 'rte.css";</style>');

        //for testing standard textarea, uncomment the following line
        //isRichText = false;
}

function writeRichText(rte, html, width, height, buttons, readOnly) {
        if (isRichText) {
                if (allRTEs.length > 0) allRTEs += ";";
                allRTEs += rte;

                if (readOnly) buttons = false;

                //adjust minimum table widths
                if (isIE) {
//                        if (buttons && (width < 540)) width = 540;
                        var tablewidth = width;
                } else {
//                        if (buttons && (width < 540)) width = 540;
                        var tablewidth = width + 4;
                }

                document.writeln('<div class="rteDiv">');
                if (buttons == true) {
                        document.writeln('<table class="rteBack" cellpadding=2 cellspacing=0 id="Buttons1_' + rte + '" width="' + tablewidth + '">');
                        document.writeln('        <tr>');
                        document.writeln('                <td>');
                        document.writeln('                        <select style="margin: 1px; font-size: 12px;  height: 18px;" id="formatblock_' + rte + '" onchange="selectFont(\'' + rte + '\', this.id);">');
                        document.writeln('                                <option value="">[Style]</option>');
                        document.writeln('                                <option value="<p>">Paragraph &lt;p&gt;</option>');
                        document.writeln('                                <option value="<h1>">Heading 1 &lt;h1&gt;</option>');
                        document.writeln('                                <option value="<h2>">Heading 2 &lt;h2&gt;</option>');
                        document.writeln('                                <option value="<h3>">Heading 3 &lt;h3&gt;</option>');
                        document.writeln('                                <option value="<h4>">Heading 4 &lt;h4&gt;</option>');
                        document.writeln('                                <option value="<h5>">Heading 5 &lt;h5&gt;</option>');
                        document.writeln('                                <option value="<h6>">Heading 6 &lt;h6&gt;</option>');
                        document.writeln('                                <option value="<address>">Address &lt;ADDR&gt;</option>');
                        document.writeln('                                <option value="<pre>">Formatted &lt;pre&gt;</option>');
                        document.writeln('                        </select>');
                        document.writeln('                </td>');
                        document.writeln('                <td>');
                        document.writeln('                        <select style="margin: 1px; font-size: 12px;  height: 18px;" id="fontname_' + rte + '" onchange="selectFont(\'' + rte + '\', this.id)">');
                        document.writeln('                                <option value="Font" selected>[Font]</option>');
                        document.writeln('                                <option value="Arial, Helvetica, sans-serif">Arial</option>');
                        document.writeln('                                <option value="Courier New, Courier, mono">Courier New</option>');
                        document.writeln('                                <option value="Times New Roman, Times, serif">Times New Roman</option>');
                        document.writeln('                                <option value="Verdana, Arial, Helvetica, sans-serif">Verdana</option>');
                        document.writeln('                                <option value="Helvetica, Verdana, Arial, sans-serif">Helvetica</option>');
                        document.writeln('                        </select>');
                        document.writeln('                </td>');
                        document.writeln('                <td>');
                        document.writeln('                        <select style="margin: 1px; font-size: 12px;  height: 18px;" unselectable="on" id="fontsize_' + rte + '" onchange="selectFont(\'' + rte + '\', this.id);">');
                        document.writeln('                                <option value="Size">[Size]</option>');
                        document.writeln('                                <option value="1">1</option>');
                        document.writeln('                                <option value="2">2</option>');
                        document.writeln('                                <option value="3">3</option>');
                        document.writeln('                                <option value="4">4</option>');
                        document.writeln('                                <option value="5">5</option>');
                        document.writeln('                                <option value="6">6</option>');
                        document.writeln('                                <option value="7">7</option>');
                        document.writeln('                        </select>');
                        document.writeln('                </td>');
                        document.writeln('                <td width="100%">');
                        document.writeln('                </td>');
                        document.writeln('        </tr>');
                        document.writeln('</table>');
                        document.writeln('<table class="rteBack" cellpadding="0" cellspacing="0" id="Buttons2_' + rte + '" width="' + tablewidth + '">');
                        document.writeln('        <tr>');
                        document.writeln('                <td><img id="bold" class="rteImage" src="' + imagesPath + 'bold.gif" width="25" height="24" alt="Bold" title="Bold" onClick="rteCommand(\'' + rte + '\', \'bold\', \'\')"></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'italic.gif" width="25" height="24" alt="Italic" title="Italic" onClick="rteCommand(\'' + rte + '\', \'italic\', \'\')"></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'underline.gif" width="25" height="24" alt="Underline" title="Underline" onClick="rteCommand(\'' + rte + '\', \'underline\', \'\')"></td>');
                        document.writeln('                <td><img class="rteVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'left_just.gif" width="25" height="24" alt="Align Left" title="Align Left" onClick="rteCommand(\'' + rte + '\', \'justifyleft\', \'\')"></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'centre.gif" width="25" height="24" alt="Center" title="Center" onClick="rteCommand(\'' + rte + '\', \'justifycenter\', \'\')"></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'right_just.gif" width="25" height="24" alt="Align Right" title="Align Right" onClick="rteCommand(\'' + rte + '\', \'justifyright\', \'\')"></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'justifyfull.gif" width="25" height="24" alt="Justify Full" title="Justify Full" onclick="rteCommand(\'' + rte + '\', \'justifyfull\', \'\')"></td>');
                        document.writeln('                <td><img class="rteVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'hr.gif" width="25" height="24" alt="Horizontal Rule" title="Horizontal Rule" onClick="rteCommand(\'' + rte + '\', \'inserthorizontalrule\', \'\')"></td>');
                        document.writeln('                <td><img class="rteVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'numbered_list.gif" width="25" height="24" alt="Ordered List" title="Ordered List" onClick="rteCommand(\'' + rte + '\', \'insertorderedlist\', \'\')"></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'list.gif" width="25" height="24" alt="Unordered List" title="Unordered List" onClick="rteCommand(\'' + rte + '\', \'insertunorderedlist\', \'\')"></td>');
                        document.writeln('                <td><img class="rteVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
//                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'outdent.gif" width="25" height="24" alt="Outdent" title="Outdent" onClick="rteCommand(\'' + rte + '\', \'outdent\', \'\')"></td>');
//                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'indent.gif" width="25" height="24" alt="Indent" title="Indent" onClick="rteCommand(\'' + rte + '\', \'indent\', \'\')"></td>');
                        document.writeln('                <td><div id="forecolor_' + rte + '"><img class="rteImage" src="' + imagesPath + 'textcolor.gif" width="25" height="24" alt="Text Color" title="Text Color" onClick="dlgColorPalette(\'' + rte + '\', \'forecolor\', \'\')"></div></td>');
                        document.writeln('                <td><div id="hilitecolor_' + rte + '"><img class="rteImage" src="' + imagesPath + 'bgcolor.gif" width="25" height="24" alt="Background Color" title="Background Color" onClick="dlgColorPalette(\'' + rte + '\', \'hilitecolor\', \'\')"></div></td>');
                        document.writeln('                <td><img class="rteVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'hyperlink.gif" width="25" height="24" alt="Insert Link" title="Insert Link" onClick="dlgInsertLink(\'' + rte + '\', \'link\')"></td>');
//                        document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'image.gif" width="25" height="24" alt="Add Image" title="Add Image" onClick="addImage(\'' + rte + '\')"></td>');
                        document.writeln('                <td><div id="table_' + rte + '"><img class="rteImage" src="' + imagesPath + 'insert_table.gif" width="25" height="24" alt="Insert Table" title="Insert Table" onClick="dlgInsertTable(\'' + rte + '\', \'table\', \'\')"></div></td>');
                        if (isIE) {
//                                document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'spellcheck.gif" width="25" height="24" alt="Spell Check" title="Spell Check" onClick="checkspell()"></td>');
                        }
        //                document.writeln('                <td><img class="rteVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
        //                document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'cut.gif" width="25" height="24" alt="Cut" title="Cut" onClick="rteCommand(\'' + rte + '\', \'cut\')"></td>');
        //                document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'copy.gif" width="25" height="24" alt="Copy" title="Copy" onClick="rteCommand(\'' + rte + '\', \'copy\')"></td>');
        //                document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'paste.gif" width="25" height="24" alt="Paste" title="Paste" onClick="rteCommand(\'' + rte + '\', \'paste\')"></td>');
        //                document.writeln('                <td><img class="rteVertSep" src="' + imagesPath + 'blackdot.gif" width="1" height="20" border="0" alt=""></td>');
        //                document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'undo.gif" width="25" height="24" alt="Undo" title="Undo" onClick="rteCommand(\'' + rte + '\', \'undo\')"></td>');
        //                document.writeln('                <td><img class="rteImage" src="' + imagesPath + 'redo.gif" width="25" height="24" alt="Redo" title="Redo" onClick="rteCommand(\'' + rte + '\', \'redo\')"></td>');
                        document.writeln('                <td width="100%"></td>');
                        document.writeln('        </tr>');
                        document.writeln('</table>');
                }
                document.writeln('<iframe id="' + rte + '" name="' + rte + '" width="' + width + 'px" height="' + height + 'px" src="' + includesPath + 'blank.htm"></iframe>');
                if (!readOnly) document.writeln('<br /><input type="checkbox" id="chkSrc' + rte + '" onclick="toggleHTMLSrc(\'' + rte + '\',' + buttons + ');" />&nbsp;<label for="chkSrc' + rte + '">View Source</label>');
                document.writeln('<iframe width="154" height="104" id="cp' + rte + '" src="' + includesPath + 'palette.htm" marginwidth="0" marginheight="0" scrolling="no" style="visibility:hidden; position: absolute;"></iframe>');
                document.writeln('<input type="hidden" id="hdn' + rte + '" name="' + rte + '" value="">');
                document.writeln('</div>');

                document.getElementById('hdn' + rte).value = html;
                enableDesignMode(rte, html, readOnly);
        } else {
                if (!readOnly) {
                        document.writeln('<textarea name="' + rte + '" id="' + rte + '" style="width: ' + width + 'px; height: ' + height + 'px;">' + html + '</textarea>');
                } else {
                        document.writeln('<textarea name="' + rte + '" id="' + rte + '" style="width: ' + width + 'px; height: ' + height + 'px;" readonly>' + html + '</textarea>');
                }
        }
}

function enableDesignMode(rte, html, readOnly) {
        var frameHtml = "<html id=\"" + rte + "\">\n";
        frameHtml += "<head>\n";
        //to reference your stylesheet, set href property below to your stylesheet path and uncomment
        if (cssFile.length > 0 ) {
                frameHtml += "<link media=\"all\" type=\"text/css\" href=\"" + includesPath + "rte.css\" rel=\"stylesheet\">\n";
        } else {
                frameHtml += "<style>\n";
                frameHtml += "body {\n";
                frameHtml += "        background: #FFFFFF;\n";
                frameHtml += "        margin: 0px;\n";
                frameHtml += "        padding: 0px;\n";
                frameHtml += "}\n";
                frameHtml += "</style>\n";
        }
        frameHtml += "</head>\n";
        frameHtml += "<body>\n";
        frameHtml += html + "\n";
        frameHtml += "</body>\n";
        frameHtml += "</html>";

        if (document.all) {
                var oRTE = frames[rte].document;
                oRTE.open();
                oRTE.write(frameHtml);
                oRTE.close();
                if (!readOnly) {
                        oRTE.designMode = "On";
                        frames[rte].document.attachEvent("onkeypress", function evt_ie_keypress(event) {ieKeyPress(event, rte);});
                }
        } else {
                try {
                        if (!readOnly) document.getElementById(rte).contentDocument.designMode = "on";
                        try {
                                var oRTE = document.getElementById(rte).contentWindow.document;
                                oRTE.open();
                                oRTE.write(frameHtml);
                                oRTE.close();
                                if (isGecko && !readOnly) {
                                        //attach a keyboard handler for gecko browsers to make keyboard shortcuts work
                                        oRTE.addEventListener("keypress", geckoKeyPress, true);
                                }
                        } catch (e) {
                                alert("Error preloading content.");
                        }
                } catch (e) {
                        //gecko may take some time to enable design mode.
                        //Keep looping until able to set.
                        if (isGecko) {
                                setTimeout("enableDesignMode('" + rte + "', '" + html + "', " + readOnly + ");", 10);
                        } else {
                                return false;
                        }
                }
        }
}

function updateRTE(rte) {
        if (!isRichText) return;

        //check for readOnly mode
        var readOnly = false;
        if (document.all) {
                if (frames[rte].document.designMode != "On") readOnly = true;
        } else {
                if (document.getElementById(rte).contentDocument.designMode != "on") readOnly = true;
        }

        if (isRichText && !readOnly) {
                //if viewing source, switch back to design view
                if (document.getElementById("chkSrc" + rte).checked) document.getElementById("chkSrc" + rte).click();
                setHiddenVal(rte);
        }
}

function setHiddenVal(rte) {
        //set hidden form field value for current rte
        var oHdnField = document.getElementById('hdn' + rte);

        //convert html output to xhtml (thanks Timothy Bell and Vyacheslav Smolin!)
        if (oHdnField.value == null) oHdnField.value = "";
        if (document.all) {
                if (generateXHTML) {
                        oHdnField.value = get_xhtml(frames[rte].document.body, lang, encoding);
                } else {
                        oHdnField.value = frames[rte].document.body.innerHTML;
                }
        } else {
                if (generateXHTML) {
                        oHdnField.value = get_xhtml(document.getElementById(rte).contentWindow.document.body, lang, encoding);
                } else {
                        oHdnField.value = document.getElementById(rte).contentWindow.document.body.innerHTML;
                }
        }

        //if there is no content (other than formatting) set value to nothing
        if (stripHTML(oHdnField.value.replace("&nbsp;", " ")) == "" &&
                oHdnField.value.toLowerCase().search("<hr") == -1 &&
                oHdnField.value.toLowerCase().search("<img") == -1) oHdnField.value = "";
}

function updateRTEs() {
        var vRTEs = allRTEs.split(";");
        for (var i = 0; i < vRTEs.length; i++) {
                updateRTE(vRTEs[i]);
        }
}

function rteCommand(rte, command, option) {
        //function to perform command
        var oRTE;
        if (document.all) {
                oRTE = frames[rte];
        } else {
                oRTE = document.getElementById(rte).contentWindow;
        }

        try {
                oRTE.focus();
                  oRTE.document.execCommand(command, false, option);
                oRTE.focus();
        } catch (e) {
//                alert(e);
//                setTimeout("rteCommand('" + rte + "', '" + command + "', '" + option + "');", 10);
        }
}

function toggleHTMLSrc(rte, buttons) {
        //contributed by Bob Hutzel (thanks Bob!)
        var oHdnField = document.getElementById('hdn' + rte);

        if (document.getElementById("chkSrc" + rte).checked) {
                //we are checking the box

                 rteCommand(rte,'selectall','');

                if (buttons) {
                        showHideElement("Buttons1_" + rte, "hide");
                        showHideElement("Buttons2_" + rte, "hide");
                }
                setHiddenVal(rte);
                if (document.all) {
                        frames[rte].document.body.innerText = oHdnField.value;
                } else {
                        var oRTE = document.getElementById(rte).contentWindow.document;
                        var htmlSrc = oRTE.createTextNode(oHdnField.value);
                        oRTE.body.innerHTML = "";
                        oRTE.body.appendChild(htmlSrc);
                }
        } else {
                //we are unchecking the box
                if (buttons) {
                        showHideElement("Buttons1_" + rte, "show");
                        showHideElement("Buttons2_" + rte, "show");
                }
                if (document.all) {
                        //fix for IE
                        var output = escape(frames[rte].document.body.innerText);
                        output = output.replace("%3CP%3E%0D%0A%3CHR%3E", "%3CHR%3E");
                        output = output.replace("%3CHR%3E%0D%0A%3C/P%3E", "%3CHR%3E");
                        frames[rte].document.body.innerHTML = unescape(output);
                } else {
                        var oRTE = document.getElementById(rte).contentWindow.document;
                        var htmlSrc = oRTE.body.ownerDocument.createRange();
                        htmlSrc.selectNodeContents(oRTE.body);
                        oRTE.body.innerHTML = htmlSrc.toString();
                }
        }

}

function dlgColorPalette(rte, command) {
        //function to display or hide color palettes
        setRange(rte);

        //get dialog position
        var oDialog = document.getElementById('cp' + rte);
        var buttonElement = document.getElementById(command + '_' + rte);
        var iLeftPos = getOffsetLeft(buttonElement);
        var iTopPos = getOffsetTop(buttonElement) + (buttonElement.offsetHeight + 4);
        oDialog.style.left = (iLeftPos) + "px";
        oDialog.style.top = (iTopPos) + "px";

        if ((command == parent.command) && (rte == currentRTE)) {
                //if current command dialog is currently open, close it
                if (oDialog.style.visibility == "hidden") {
                        showHideElement(oDialog, 'show');
                } else {
                        showHideElement(oDialog, 'hide');
                }
        } else {
                //if opening a new dialog, close all others
                var vRTEs = allRTEs.split(";");
                for (var i = 0; i < vRTEs.length; i++) {
                        showHideElement('cp' + vRTEs[i], 'hide');
                }
                showHideElement(oDialog, 'show');
        }

        //save current values
        parent.command = command;
        currentRTE = rte;
}

function dlgInsertTable(rte, command) {
        //function to open/close insert table dialog
        //save current values
        parent.command = command;
        currentRTE = rte;
        InsertTable = popUpWin(includesPath + 'insert_table.htm', 'InsertTable', 360, 180, '');
}

function dlgInsertLink(rte, command) {
        //function to open/close insert table dialog
        //save current values
        parent.command = command;
        currentRTE = rte;
        InsertLink = popUpWin(includesPath + 'insert_link.htm', 'InsertLink', 360, 180, '');

        //get currently highlighted text and set link text value
        setRange(rte);
        var linkText = '';
        if (isIE) {
                linkText = stripHTML(rng.htmlText);
        } else {
                linkText = stripHTML(rng.toString());
        }
        setLinkText(linkText);
}

function setLinkText(linkText) {
        //set link text value in insert link dialog
        try {
                window.InsertLink.document.linkForm.linkText.value = linkText;
        } catch (e) {
                //may take some time to create dialog window.
                //Keep looping until able to set.
                setTimeout("setLinkText('" + linkText + "');", 10);
        }
}

function popUpWin (url, win, width, height, options) {
        var leftPos = (screen.availWidth - width) / 2;
        var topPos = (screen.availHeight - height) / 2;
        options += 'width=' + width + ',height=' + height + ',left=' + leftPos + ',top=' + topPos;
        return window.open(url, win, options);
}

function setColor(color) {
        //function to set color
        var rte = currentRTE;
        var parentCommand = parent.command;

        if (document.all) {
                if (parentCommand == "hilitecolor") parentCommand = "backcolor";

                //retrieve selected range
                rng.select();
        }

        rteCommand(rte, parentCommand, color);
        showHideElement('cp' + rte, "hide");
}

function addImage(rte) {
        //function to add image
        imagePath = prompt('Enter Image URL:', 'http://');
        if ((imagePath != null) && (imagePath != "")) {
                rteCommand(rte, 'InsertImage', imagePath);
        }
}

// Ernst de Moor: Fix the amount of digging parents up, in case the RTE editor itself is displayed in a div.
// KJR 11/12/2004 Changed to position palette based on parent div, so palette will always appear in proper location regardless of nested divs
function getOffsetTop(elm) {
        var mOffsetTop = elm.offsetTop;
        var mOffsetParent = elm.offsetParent;
        var parents_up = 2; //the positioning div is 2 elements up the tree

        while(parents_up > 0) {
                mOffsetTop += mOffsetParent.offsetTop;
                mOffsetParent = mOffsetParent.offsetParent;
                parents_up--;
        }

        return mOffsetTop;
}

// Ernst de Moor: Fix the amount of digging parents up, in case the RTE editor itself is displayed in a div.
// KJR 11/12/2004 Changed to position palette based on parent div, so palette will always appear in proper location regardless of nested divs
function getOffsetLeft(elm) {
        var mOffsetLeft = elm.offsetLeft;
        var mOffsetParent = elm.offsetParent;
        var parents_up = 2;

        while(parents_up > 0) {
                mOffsetLeft += mOffsetParent.offsetLeft;
                mOffsetParent = mOffsetParent.offsetParent;
                parents_up--;
        }

        return mOffsetLeft;
}

function selectFont(rte, selectname) {
        //function to handle font changes
        var idx = document.getElementById(selectname).selectedIndex;
        // First one is always a label
        if (idx != 0) {
                var selected = document.getElementById(selectname).options[idx].value;
                var cmd = selectname.replace('_' + rte, '');
                rteCommand(rte, cmd, selected);
                document.getElementById(selectname).selectedIndex = 0;
        }
}

function insertHTML(html) {
        //function to add HTML -- thanks dannyuk1982
        var rte = currentRTE;

        var oRTE;
        if (document.all) {
                oRTE = frames[rte];
        } else {
                oRTE = document.getElementById(rte).contentWindow;
        }

        oRTE.focus();
        if (document.all) {
                var oRng = oRTE.document.selection.createRange();
                oRng.pasteHTML(html);
                oRng.collapse(false);
                oRng.select();
        } else {
                oRTE.document.execCommand('insertHTML', false, html);
        }
}

function showHideElement(element, showHide) {
        //function to show or hide elements
        //element variable can be string or object
        if (document.getElementById(element)) {
                element = document.getElementById(element);
        }

        if (showHide == "show") {
                element.style.visibility = "visible";
        } else if (showHide == "hide") {
                element.style.visibility = "hidden";
        }
}

function setRange(rte) {
        //function to store range of current selection
        var oRTE;
        if (document.all) {
                oRTE = frames[rte];
                var selection = oRTE.document.selection;
                if (selection != null) rng = selection.createRange();
        } else {
                oRTE = document.getElementById(rte).contentWindow;
                var selection = oRTE.getSelection();
                rng = selection.getRangeAt(selection.rangeCount - 1).cloneRange();
        }
        return rng;
}

function stripHTML(oldString) {
        //function to strip all html
        var newString = oldString.replace(/(<([^>]+)>)/ig,"");

        //replace carriage returns and line feeds
   newString = newString.replace(/\r\n/g," ");
   newString = newString.replace(/\n/g," ");
   newString = newString.replace(/\r/g," ");

        //trim string
        newString = trim(newString);

        return newString;
}

function trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") return inputString;
   var retValue = inputString;
   var ch = retValue.substring(0, 1);

   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length - 1, retValue.length);

   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length - 1);
      ch = retValue.substring(retValue.length - 1, retValue.length);
   }

        // Note that there are two spaces in the string - look for multiple spaces within the string
   while (retValue.indexOf("  ") != -1) {
                // Again, there are two spaces in each of the strings
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ") + 1, retValue.length);
   }
   return retValue; // Return the trimmed string back to the user
}

//********************
//Gecko-Only Functions
//********************
function geckoKeyPress(evt) {
        //function to add bold, italic, and underline shortcut commands to gecko RTEs
        //contributed by Anti Veeranna (thanks Anti!)
        var rte = evt.target.id;

        if (evt.ctrlKey) {
                var key = String.fromCharCode(evt.charCode).toLowerCase();
                var cmd = '';
                switch (key) {
                        case 'b': cmd = "bold"; break;
                        case 'i': cmd = "italic"; break;
                        case 'u': cmd = "underline"; break;
                };

                if (cmd) {
                        rteCommand(rte, cmd, null);

                        // stop the event bubble
                        evt.preventDefault();
                        evt.stopPropagation();
                }
         }
}

//*****************
//IE-Only Functions
//*****************
function ieKeyPress(evt, rte) {
        var key = (evt.which || evt.charCode || evt.keyCode);
        var stringKey = String.fromCharCode(key).toLowerCase();

//the following breaks list and indentation functionality in IE (don't use)
//        switch (key) {
//                case 13:
//                        //insert <br> tag instead of <p>
//                        //change the key pressed to null
//                        evt.keyCode = 0;
//
//                        //insert <br> tag
//                        currentRTE = rte;
//                        insertHTML('<br>');
//                        break;
//        };
}

function checkspell() {
        //function to perform spell check
        try {
                var tmpis = new ActiveXObject("ieSpell.ieSpellExtension");
                tmpis.CheckAllLinkedDocuments(document);
        }
        catch(exception) {
                if(exception.number==-2146827859) {
                        if (confirm("ieSpell not detected.  Click Ok to go to download page."))
                                window.open("http://www.iespell.com/download.php","DownLoad");
                } else {
                        alert("Error Loading ieSpell: Exception " + exception.number);
                }
        }
}

function raiseButton(e) {
        var el = window.event.srcElement;

        className = el.className;
        if (className == 'rteImage' || className == 'rteImageLowered') {
                el.className = 'rteImageRaised';
        }
}

function normalButton(e) {
        var el = window.event.srcElement;

        className = el.className;
        if (className == 'rteImageRaised' || className == 'rteImageLowered') {
                el.className = 'rteImage';
        }
}

function lowerButton(e) {
        var el = window.event.srcElement;

        className = el.className;
        if (className == 'rteImage' || className == 'rteImageRaised') {
                el.className = 'rteImageLowered';
        }
}